Pump coupling



e. A. HUNTER PUMP COUPLING Filed Aqg. 5, 1921 Patented Jan. 6, 1925.

GEORGE A. HUNTER, or streams, new YORK, ASSIGNOR TO A. sci-iaennnssomin- CORPORATED, or BROOKLYN, new YORK, e CORPORATION orn'nw YORK.

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p Application filed August 5,1921. semi No. 490,046]

To all at 710m it may concern Be it known that, I, GEORGE A. HUNTER, a citizen of the United States of America, residing at Queens, in the county of Queens and State of New York, have invented certain new and useful Improvements in Pump it adapted to aline with the passage of the' tire valve, a packing washer or its equivalent adapted to make contact with the top of.

the valve nipple, and a quickly applicable clamping device for connecting suchparts to the tire valve. By preference between the clamping device and the shank portion there is located a. spring element which holds the packing washer in engagement with the valve nipple by spring pressure and the clamping device is preferably in the form of a. swivelled sleeve adapted to engage the body of the valve. The invention includes other features of improvement which will be hereinafter more fully described.

Referring to the drawings, which illustrate one form of the invention,

Figure 1'is'a diametrical section of the device shown as applied to a tire valve.

Fig. 2 is an elevation, partly in section, of the shankmemberm Fig. 8 is an elevation, partly in section, of the packing holder. I Fig. 4; is a diametrical section of the. packing. Fig. 5 is a side elevation of the spring. Fig. 6 is a view of the actuating rin Fig. 7 is a plan of the clamping ring. Referring to the drawings, let A indicate the coupling as a whole which is shown as relates to pump couplings comprisinga shank member 13 anda clamp- 7 a screw-threadedsleeve G which is adapted to engage a similar thread on the shank member. 1

The clamping niem-berjC as shown in its" preferred form comprises a sleeve H which is provided at ts'upper end with an aperture through which the shank passes. At the lower end of the sleeve is provided a clamp ing means which isshown as comprising a screw-threaded ring J engaging similar- I threads-011' the interior of the sleeve H, and

being provided with flats K designed to N againstthe taper O, and contracting it so that it engages the threads of the tire valve.

By preference I locate a spring element between the sleeve and the shank member in order that an 1n1t1al pressure may be put upon the packing E before the coupling is clamped to the valve. Such spring ele ment is shown as a s )iral spring Q, arranged between the top of t member.

e0 f 1e sleeve and the shank In operation the coupling is applied to the I valve and the sleeve G is pressed downwardly until the spring Q is compressed, whereupon the sleeve is turned slightly to clamp the device to the valve.

the valve. The degree of movement neces sary to attach and detach it depends upon;

A slight reverse, turn is suificlent to release the coupling from we I one-half aturn While I have shown andv describedone form of the invention, it Will be understood that I do not Wish to be limited thereto, since various changes may be made therein Without departing from the spirit of the invention. It is obvious that the invention may be applied to other constructions, "such as dust caps or similar devices.

VVha-t I claim is 1. The combination of a part carrying a packing adapted to engage the endof a tire valve, and the like, and a quickly detachable clamping device comprising c'ontractile spring means adapted by a rotary movement oifthe device to engage the'casing of the tire valve. I r

The combinati n' of a part carrying a packing adapted to engage the end of a tire valve or the like, quickly detachable clamping device comprising contractile means adapted by a rotary movement 01; the deviceto engage the casing ofthe'tire valve,

' and a spring interposed between s'aidclamping device and said part. 7 v

The combination of a part carrying :1 packing, a sleeve connected vvlth saidpart,

. a clamping n'ieans, ineans'i'or engaging the tire valve adapted upon a ielatlve rotary movement'with the sleeve to operate said clamping means, and a spring interposed between said part and said sleeve.

i. The combination of a shank member and a' ackin a s rin' above said Jack- 'ing, a sleeve engaging said spring, means comprising contractile'member carried by the sleeve for engaging a tire valve, cooperating With the sleeve, and means for contracting the member to engage the thread of the tire valve casing said means being operable by'rotation of the sleeve.

scribing Witnesses.

, GEORGE A. HUNTER. lVitnesses:

G. J. 'SANsoM, E. 'Bnncr'mnnq 

